reproductive system (vocab) Flashcards
what is asexual reproduction?
a type of reproduction that requires one parent to create an identical offspring.
what is sexual reproduction?
a type of reproduction that requires two parents to create a genetically different offspring.
what is the mitosis process?
a cell division that results in two identical daughter body cells
what is the meiosis process?
a cell division that results in four different daughter sex cells.
what is the embryo?
an unborn fetus in development
what is estrogen?
a hormone regulating the reproductive systems. it also triggers ovulation (releasing of the egg)
what is progesterone?
a hormone that prepares the uterus (specifically the lining) to hold a zygote.
what is cell differentiation?
the process of (stem) cells changing from one type to a differentiated one.
what is a gamete?
a sex cell containing 23 chromosomes
what is fertilization?
the process of combining a male sex cell (sperm) to a female sex cell (egg)
what is a zygote?
a fertilized egg
what are the ovaries?
a gland that produces and stores the eggs
what is the placenta?
an organ that develops in the uterus during pregnancy to provide nutrients and oxygen to the fetus.
what is gene expression?
the process of a gene gets turned on to make RNA & proteins
what is recombination?
the process of two molecules in the DNA exchanging pieces of genetic info between each other (genetic differentiation)
what is a sperm?
male sex cell containing 23 chromosomes
what is a egg?
female sex cell containing 23 chromosomes
what are testes?
a organ that produces sperm (male sex cell)
what is testosterone?
a hormone that triggers the sperm to leave
what is the uterus?
an organ that nourishes the developing fetus prior to birth.
